<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<link rel="stylesheet" type="text/css" href="css/new_file.css"/>
	</head>
	<body>
		<div class="container">
			<div class="ll">左侧</div>
			<div class="ll">中间</div>
			<div class="ll">右侧</div>
		</div>
	</body>
</html>